diff --git a/msc/coredb_example_prerelease.py b/msc/coredb_example_prerelease.py
new file mode 100644
index 0000000000000000000000000000000000000000..654a7c99b6121cc0c02d4fc455c90988af3c1cbb
--- /dev/null
+++ b/msc/coredb_example_prerelease.py
@@ -0,0 +1,110 @@
+#!/usr/bin/python
+
+"""
+Example script to create a pre-release folder to be later pushed to
+the CoRe DB
+SB 10/2021
+"""
+
+from watpy.utils.coreh5 import CoRe_h5
+from watpy.coredb.metadata import CoRe_md, TXT_MAIN
+from watpy.utils.units import MSun_sec
+import os # mkdirs
+
+Msun_sec = MSun_sec() #4.925794970773135e-06
+
+def generate_simulation_name(EOS,MA,MB,SzA,SzB,Momega0,extra=None):
+    """ String for simulation name as appearing in the metadata*.txt """
+    name = '{}_{:.3f}_{:.3f}_{:.2f}_{:.2f}_{:.3f}'.format(EOS,MA,MB,SzA,SzB,Momega0)
+    if extra is not None:
+        name += extra
+    return name
+
+
+# Simulation data (example)
+# --------------------------
+
+# NOTE the .txt files in the sim_folder are already in CoRe format. 
+# To generate them from standard BAM or THC output use e.g. watpy's
+# wave() and mwave(). See:
+#  tutorials/watpy_wave.ipynb
+sim_folder = '../tutorials/TestData/MySim_THC_135135/CoReDB/'
+
+# Make a list of groups and files for each group
+# IMPORTANT: group and file names must follow the CoRe conventions 
+thcdfiles = {}
+thcdfiles['energy'] = ['EJ_r00400.txt']
+thcdfiles['rh_22'] = ['Rh_l2_m2_r00400.txt']
+thcdfiles['rh_30'] = ['Rh_l3_m0_r00400.txt']
+thcdfiles['rpsi4_20'] = ['Rpsi4_l2_m0_r00400.txt']
+thcdfiles['rpsi4_22'] = ['Rpsi4_l2_m2_r00400.txt']
+# etc.
+
+
+# Metadata
+# --------
+
+# Generate a short and a long `simulation_name` for the two different metadata files
+# IMPORTANT: add to the long name some info on resolution (and other specs) 
+# and, if this is a new simulation, append a tag 'R01' so it is clear this is a run of a simulation
+simname_short = generate_simulation_name('ABC',1.35,1.35,0,0,0.03789461)
+simname_long = generate_simulation_name('ABC',1.35,1.35,0,0,0.03789461,"_R01_0.058_gridX") 
+
+# Metadata info can be provided e.g. from a python dict or a text
+# file. Here is a dict example:
+thcsim = {}
+thcsim['database_key'] = 'will_be_assigned_by_watpy_CoRe_db'
+thcsim['simulation_name'] = simname_short # use first the short name !
+thcsim['reference_bibkeys'] = 'bibitem:2021avg'
+thcsim['available_resolutions'] = '' # empty, this will be added on the way ...
+
+thcsim['id_code']                  = 'LORENE'
+thcsim['id_type']                  = 'Irrotational'
+thcsim['id_mass']                  = 2.7
+thcsim['id_rest_mass']             = 2.94554
+thcsim['id_mass_ratio']            = 1.0
+thcsim['id_ADM_mass']              = 2.67288
+thcsim['id_ADM_angularmomentum']   = 7.01514
+thcsim['id_gw_frequency_Hz']       = 663.58
+thcsim['id_gw_frequency_Momega22'] = 0.0554514940011
+thcsim['id_eos']                   = 'ABC'
+thcsim['id_kappa2T']               = 159.0084296249798
+thcsim['id_Lambda']                = 848.0449579998918
+thcsim['id_eccentricity']          = None # None entries wil remain such in the DB !
+thcsim['id_mass_starA']            = 1.35
+thcsim['id_rest_mass_starA']       = 1.47277
+thcsim['id_spin_starA']            = 0, 0, 0
+thcsim['id_LoveNum_kell_starA']    = 0.09996, 0.0269, 0.00984
+thcsim['id_Lambdaell_starA']       = 848.0449579998921, 2001.0063178210328, 4584.234164607441
+thcsim['id_mass_starB']            = 1.35
+thcsim['id_rest_mass_starB']       = 1.47277
+# etc., etc. add all entries !
+# See: watpy/coredb/metadata.py
+
+thcsim['sim-folder'] = sim_folder
+thcsim['pre-release-folder'] = simname_long 
+
+
+# Dump pre-release data
+# ---------------------
+
+# Create folder for CoRe pre-release
+os.makedirs(thcsim['pre-release-folder'], exist_ok = True)
+
+# Dump the metadata there
+# For later convenience, dump both metadata files
+# NOTE: entries not matching the CoRe metadata will be ignored
+md = CoRe_md(metadata = thcsim) 
+md.write(path = thcsim['pre-release-folder'],
+         fname = 'metadata.txt')
+
+thcsim['simulation_name'] = simname_short
+md.update_fromdict(thcsim)
+md.write(path = thcsim['pre-release-folder'],
+         fname = 'metadata_main.txt',
+         templ = TXT_MAIN)
+
+# Generate The CoRe data.h5 and dump it in the pre-release folder
+ch5 = CoRe_h5(thcsim['pre-release-folder']) 
+ch5.create_dset(thcdfiles,
+                path = thcsim['sim-folder'])